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Lethenteron
''Lethenteron'' is a genus of lamprey in the family Petromyzontidae. Species There are currently 7 recognized species in this genus: * '' Lethenteron alaskense'' Vladykov & Kott, 1978 (Alaskan brook lamprey) * '' Lethenteron appendix'' ( DeKay, 1842) (American brook lamprey) * '' Lethenteron camtschaticum'' ( Tilesius, 1811) (Arctic lamprey) (Japanese brook lamprey) * '' Lethenteron kessleri'' (Anikin, 1905) (Siberian brook lamprey) * '' Lethenteron mitsukurii'' (Hatta, 1901) * '' Lethenteron ninae'' Naseka, Tuniyev & Renaud Renaud Pierre Manuel Séchan (; born 11 May 1952 in Paris), known as Renaud, is a French singer-songwriter. With twenty-six albums to his credit, selling nearly twenty million copies, he is one of France's most popular singers. Several of h ..., 2009 (Western Transcaucasian lamprey) * '' Lethenteron reissneri'' ( Dybowski, 1869) (Far Eastern brook lamprey) References Jawless fish genera Taxa named by Carl Leavitt Hubbs Taxonomy article ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethenteron Kessleri
''Lethenteron'' is a genus of lamprey in the family Petromyzontidae. Species There are currently 7 recognized species in this genus: * ''Lethenteron alaskense'' Vladykov & Kott, 1978 (Alaskan brook lamprey) * '' Lethenteron appendix'' ( DeKay, 1842) (American brook lamprey) * '' Lethenteron camtschaticum'' ( Tilesius, 1811) (Arctic lamprey) (Japanese brook lamprey) * '' Lethenteron kessleri'' (Anikin, 1905) (Siberian brook lamprey) * ''Lethenteron mitsukurii'' (Hatta, 1901) * ''Lethenteron ninae'' Naseka, Tuniyev & Renaud Renaud Pierre Manuel Séchan (; born 11 May 1952 in Paris), known as Renaud, is a French singer-songwriter. With twenty-six albums to his credit, selling nearly twenty million copies, he is one of France's most popular singers. Several of h ..., 2009 (Western Transcaucasian lamprey) * '' Lethenteron reissneri'' ( Dybowski, 1869) (Far Eastern brook lamprey) References Jawless fish genera Taxa named by Carl Leavitt Hubbs Taxonomy articles c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethenteron Mitsukurii
''Lethenteron'' is a genus of lamprey in the family (biology), family Petromyzontidae. Species There are currently 7 recognized species in this genus: * ''Lethenteron alaskense'' Vadim Dimitrievitch Vladykov, Vladykov & Edward Kott, Kott, 1978 (Alaskan brook lamprey) * ''Lethenteron appendix'' (James Ellsworth DeKay, DeKay, 1842) (American brook lamprey) * ''Lethenteron camtschaticum'' (Wilhelm Gottlieb Tilesius von Tilenau, Tilesius, 1811) (Arctic lamprey) (Japanese brook lamprey) * ''Lethenteron kessleri'' (Anikin, 1905) (Siberian brook lamprey) * ''Lethenteron mitsukurii'' (Hatta, 1901) * ''Lethenteron ninae'' Alexander Mikhailovich Naseka, Naseka, Sako B. Tuniyev, Tuniyev & Claude B. Renaud, Renaud, 2009 (Western Transcaucasian lamprey) * ''Lethenteron reissneri'' (Benedykt Dybowski, Dybowski, 1869) (Far Eastern brook lamprey) References Lethenteron, Jawless fish genera Taxa named by Carl Leavitt Hubbs Taxonomy articles created by Polbot {{jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethenteron Camtschaticum
The Arctic lamprey (''Lethenteron camtschaticum''), also known as the Japanese river lamprey or Japanese lampern (''Petromyzon japonicus'' Martens 1868, ''Lampetra fluviatilis japonica'' (Martens 1868), '' Lampetra japonica'' (Martens 1868), '' Lethenteron japonicum'' (Martens 1868) ), is a species of lamprey, a jawless fish in the order Petromyzontiformes. It inhabits coastal freshwater habitat types in the Arctic. Some populations are anadromous, spending part of their lives in the ocean. It is the most common and widespread lamprey in the Arctic region. Description This lamprey is usually about long, but specimens have been known to reach and in weight. Non-anadromous individuals are rarely over long. It is brown, gray, or olive in color with a paler belly. There are two dorsal fins located near the tail, the posterior one larger than the anterior. Males are larger than females. The caudal fin has two lobes, the lower longer than the upper. It is continuous with the dorsal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamprey
Lampreys (sometimes inaccurately called lamprey eels) are a group of Agnatha, jawless fish comprising the order (biology), order Petromyzontiformes , sole order in the Class (biology), class Petromyzontida. The adult lamprey is characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin , which may mean "stone licker" ( "to lick" + "stone"), though the etymology is uncertain. "Lamprey" is sometimes seen for the plural form. About 38 extant species of lampreys are known, with around seven known extinct species. They are classified in three families—two small families in the Southern Hemisphere (Geotriidae, Mordaciidae) and one large family in the Northern Hemisphere (Petromyzontidae). Genetic evidence suggests that lampreys are more closely related to hagfish, the only other living group of jawless fish, than they are to jawed vertebrates, forming the superclass Cyclostomi. The oldest fossils of stem-group lampreys are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethenteron Reissneri
''Lethenteron reissneri'', the Far Eastern brook lamprey, is a species of lamprey. Immature ''L reissneri'' are parasitic, but shift to a non-parasitic feeding strategy upon reaching maturity. It is found in lakes and rivers in China, Japan, Korea, Mongolia, and the Russian Far East. It may be identical to the Siberian brook lamprey, ''Lethenteron kessleri'', but molecular evidence suggests they are cryptic species In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each oth .... References reissneri {{jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethenteron Appendix
''Lethenteron appendix'', the American brook lamprey, is a common non-parasitic lamprey in North America. In adults their disc-like mouths contain poorly developed teeth, useless for attaching to a host. Description The eggs of the American brook lamprey (ABL) are white, sticky, and small, measuring about . When they hatch, the embryos are small as well, measuring less than ; they are white and wormlike. Within a month they take on the larval appearance. Larvae of all lampreys are called ammocoetes and when small ABL ammocoetes have a dark band running longitudinally along the body, a dark head region, and the remainder of the body is clear. As they increase in size the body becomes increasing darker, reaching a dark brown by the time the ammocoetes reach their maximum size of about . The dark band on the body begins to lighten during this is as well and is not distinct in more mature ammocoetes. However, mature ammocoetes will have a dark spot on the caudal fin. There are likely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petromyzontidae
Petromyzontidae are a family of lampreys native to the Northern Hemisphere, comprising the vast majority of living lampreys. Petromyzontids have the highest number of chromosomes (164–174) among vertebrates. Genera * '' Caspiomyzon'' * '' Entosphenus'' * '' Eudontomyzon'' * '' Ichthyomyzon'' * ''Lampetra ''Lampetra'' is a genus of lampreys in the family Petromyzontidae. Phylogenetic studies indicate that this genus as presently defined is polyphyletic, with species of this genus from western North America forming a clade that forms the sister ...'' * '' Lethenteron'' * '' Petromyzon'' * '' Tetrapleurodon'' References External links FishBase.org: Details for family Petromyzontidae – the Northern lampreys Fish described in 1827 Fish families Fish of Asia Fish of Europe Fish of North America Fish of the Atlantic Ocean Fish of the Pacific Ocean Taxa named by Antoine Risso {{jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lampetra
''Lampetra'' is a genus of lampreys in the family Petromyzontidae. Phylogenetic studies indicate that this genus as presently defined is polyphyletic, with species of this genus from western North America forming a clade that forms the sister group to '' Lethenteron'', '' Eudontomyzon'', and ''Lampetra sensu stricto'' (eastern North American and European species). Species The currently recognized species in this genus are: * '' Lampetra aepyptera'' ( C. C. Abbott, 1860) (Least brook lamprey) * '' Lampetra alavariensis'' Mateus, Alves, Quintella & P. R. Almeida, 2013 (Portuguese lamprey)Mateus, C.S., Alves, M.J., Quintella, B.R. & Almeida, P.R. (2013)Three new cryptic species of the lamprey genus ''Lampetra'' Bonnaterre, 1788 (Petromyzontiformes: Petromyzontidae) from the Iberian Peninsula. ''Contributions to Zoology'', 82 (1): 37-53. * '' Lampetra auremensis'' Mateus, Alves, Quintella & P. R. Almeida, 2013 (Qurem lamprey) * '' Lampetra ayresii'' ( Günther, 1870) (Wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jawless Fish Genera
Agnatha (; ) or jawless fish is a paraphyletic infraphylum of animals in the subphylum Vertebrata of the phylum Chordata, characterized by the lack of jaws. The group consists of both living (cyclostomes such as hagfishes and lampreys) and extinct clades (e.g. conodonts and cephalaspidomorphs, among others). They are sister to vertebrates with jaws known as gnathostomes, who evolved from jawless ancestors during the early Silurian by developing folding articulations in the first pairs of gill arches. Molecular data, both from rRNA and from mtDNA as well as embryological data, strongly supports the hypothesis that both groups of living agnathans, hagfishes and lampreys, are more closely related to each other than to jawed fish, forming the superclass Cyclostomi. The oldest fossil agnathans appeared in the Cambrian. Living jawless fish comprise about 120 species in total. Hagfish are considered members of the subphylum Vertebrata, because they secondarily lost vertebrae; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
